Ag8SiTe6: A New Thermoelectric Material with Low Thermal Conductivity

Here, we introduce a new thermoelectric material: Ag 8 SiTe 6 . Ag 8 SiTe 6 indicated p-type semiconductor characteristics. The crystal structure of Ag 8 SiTe 6 was quite complicated, which led to a very low thermal conductivity of 0.23 W m -1 K -1 at room temperature. A relatively high thermoelectric figure of merit of 0.48 was obtained at 800 K, which was mainly due to the very low thermal conductivity.